﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using System.Net.Http;
using System.IO;
using Newtonsoft.Json;

namespace 工厂物资管理.Face
{
    public static class AuthService
    {
        // 调用getAccessToken()获取的 access_token建议根据expires_in 时间 设置缓存
        // 返回token示例
        public static String TOKEN = "24.adda70c11b9786206253ddb70affdc46.2592000.1493524354.282335-1234567";

        // 百度云中开通对应服务应用的 API Key 建议开通应用的时候多选服务
        private static String clientId = "4UwjsdC3XGTLhnl1ZR9NrdK5";
        // 百度云中开通对应服务应用的 Secret Key
        private static String clientSecret = "7uHFvMcfyG5FwQTOYtDTgPkrAM5yEsxK";

        public static String getAccessToken()
        {
            String authHost = "https://aip.baidubce.com/oauth/2.0/token";
            HttpClient client = new HttpClient();
            List<KeyValuePair<String, String>> paraList = new List<KeyValuePair<string, string>>();
            paraList.Add(new KeyValuePair<string, string>("grant_type", "client_credentials"));
            paraList.Add(new KeyValuePair<string, string>("client_id", clientId));
            paraList.Add(new KeyValuePair<string, string>("client_secret", clientSecret));

            HttpResponseMessage response = client.PostAsync(authHost, new FormUrlEncodedContent(paraList)).Result;
            String result = response.Content.ReadAsStringAsync().Result;

         //   JsonReader reader = new JsonTextReader(new StringReader(result));
            
          //  while (reader.Read())
            //{
           //     Console.WriteLine(reader.TokenType + "\t\t" + reader.ValueType + "\t\t" + reader.Value + "\r\n");
           // }
           // Console.ReadKey();
            // Console.WriteLine(result);
            return result;
        }
    }

}
